CN206973523U - A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system - Google Patents

A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system Download PDF

Info

Publication number
CN206973523U
CN206973523U CN201720736013.4U CN201720736013U CN206973523U CN 206973523 U CN206973523 U CN 206973523U CN 201720736013 U CN201720736013 U CN 201720736013U CN 206973523 U CN206973523 U CN 206973523U
Authority
CN
China
Prior art keywords
water
heat exchanger
gasification
gasification gas
power generation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201720736013.4U
Other languages
Chinese (zh)
Inventor
徐民
吴智泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Datang Anhui Power Generation Co Ltd
China Datang Corp Science and Technology Research Institute Co Ltd East China Branch
Original Assignee
Datang Anhui Power Generation Co Ltd
China Datang Corp Science and Technology Research Institute Co Ltd East China Branch
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Datang Anhui Power Generation Co Ltd, China Datang Corp Science and Technology Research Institute Co Ltd East China Branch filed Critical Datang Anhui Power Generation Co Ltd
Priority to CN201720736013.4U priority Critical patent/CN206973523U/en
Application granted granted Critical
Publication of CN206973523U publication Critical patent/CN206973523U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of gasification of biomass coupling coal fired power generation gasification gas to utilize system, including gasification gas heat exchanger, water circulating pump, height to add the heat exchanger that draws water, to water- to-water heat exchanger, flue gas heat-exchange unit;The gasification gas heat exchanger connection water circulating pump, the water circulating pump connects two-way, connection is high all the way adds the heat exchanger that draws water, another way is connected to water- to-water heat exchanger, described high plus draw water heat exchanger, the other end to water- to-water heat exchanger are all connected with flue gas heat-exchange unit, the other end connection gasification gas heat exchanger of flue gas heat-exchange unit.The beneficial effects of the utility model, the deep-step for realizing gasification gas sensible heat utilize, and add steam turbine amount of work during high load capacity, ensure that denitration efficiency during underload;And the heat medium water of gasification gas heating heating boiler after high plus draw water heater or feed-water heater is flowed through is discharged fume, and is lifted exhaust gas temperature, is reduced " gypsum rain " phenomenon, prevent chimney from corroding.

Description

A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system
Technical field
It the utility model is related to a kind of heat utilization system, more particularly to a kind of gasification of biomass coupling coal fired power generation gas Change gas and utilize system.
Background technology
Gasification of biomass coupling coal fired power generation biomass gasifying furnace outlet gasification temperature degree is 700-750 DEG C or so, is considered The temperature that can bear to fuel gas transportation pipeline, valve and annex, gasification gas must be cooled down first.Conventional heating boiler condensed water at present Mode using gasifying sensible heat.
During coal-burning boiler heavy-duty service, outside heat heating height adds to water, and exclusion is high plus draws gas, and can increase steam turbine and do Work, improve efficiency of generating unit.When boiler at low load is run, denitration input gas temperature is relatively low, it is impossible to ensures denitrating system height Effect operation, heating feedwater, denitration input gas temperature can be improved by improving economizer import Temperature of Working, ensure that denitrating system is efficient Operation.
Thermal generation unit is relatively low through flue gas after desulfurization temperature, and meeting " gypsum rain " phenomenon, chimney is easily corroded.Existing skill Art heat transfer temperature difference is big, and energy utilization efficiency is than relatively low.
Utility model content
Technical problem to be solved in the utility model is the provision of a kind of different using the controlled atmosphere section coal-burning boiler that gasifies The operational efficiency of load, reduce the gasification of biomass coupling coal fired power generation gasification gas that chimney is corroded and utilize system.
The utility model is that solve above-mentioned technical problem by the following technical programs:The utility model is included on pipeline Gasification gas heat exchanger, the water circulating pump being sequentially connected, the water circulating pump connect two-way, and connection is high all the way adds the heat exchanger that draws water, Another way is connected to water- to-water heat exchanger, and described high plus draw water heat exchanger, the other end to water- to-water heat exchanger are all connected with flue gas heat-exchange unit, cigarette The other end connection gasification gas heat exchanger of gas heat exchanger.
Preferably, in addition to stop valve, stop valve one end connection water circulating pump, the other end connect two-way, and connection is high all the way Add the heat exchanger that draws water, another way is connected to water- to-water heat exchanger.
Preferably, add to draw water in the height and the first regulating valve is set between heat exchanger and stop valve.
Preferably, described to setting the second regulating valve between water- to-water heat exchanger and stop valve.
Preferably, the 3rd regulating valve is set between flue gas heat-exchange unit and the high plus heat exchanger that draws water.
Preferably, in addition to one bypasses, and the 4th regulating valve is set in bypass, the 4th regulating valve is connected in parallel on the 3rd regulating valve With flue gas heat-exchange unit both ends.
Preferably, the gasification gas heat exchanger, height add the heat exchanger that draws water, are surface to water- to-water heat exchanger, flue gas heat-exchange unit Formula heat exchanger.
Preferably, the gasification gas heat exchanger is arranged in gasification feed channel.
Preferably, the flue gas heat-exchange unit is arranged in boiler exhaust gas pipe.
The utility model has advantages below compared with prior art:The utility model realizes the depth ladder of gasification gas sensible heat Level utilizes, and adds steam turbine amount of work during high load capacity, ensure that denitration efficiency during underload;And the heat medium water of gasification gas heating exists Heating boiler is discharged fume after flowing through high plus draw water heater or feed-water heater, is lifted exhaust gas temperature, is reduced " gypsum rain " phenomenon, Prevent chimney from corroding.
Brief description of the drawings
Fig. 1 is the structural representation that a kind of gasification of biomass coupling coal fired power generation gasification gas of the utility model utilizes system.
2 stop valve of gasification gas 1 water circulating pump of heat exchanger 21 is high plus the regulating valve 31 of heat exchanger 3 first feedwater of drawing water is changed The regulating valve 6 of 41 the 3rd regulating valve 51 of flue gas heat-exchange unit 5 of hot 4 second regulating valve of device the 4th
Embodiment
Embodiment of the present utility model is elaborated below, the present embodiment using technical solutions of the utility model before Put and implemented, give detailed embodiment and specific operating process, but the scope of protection of the utility model is unlimited In following embodiments.
As shown in figure 1, the present embodiment is included in gasification gas heat exchanger 1, the water circulating pump 2 being sequentially connected on pipeline, it is described The connection two-way of water circulating pump 2, connection is high all the way plus the heat exchanger 3 that draws water, another way are connected to water- to-water heat exchanger 4, and the height, which adds, to draw water Heat exchanger 3, the other end to water- to-water heat exchanger 4 are all connected with flue gas heat-exchange unit 5, and the other end connection gasification gas of flue gas heat-exchange unit 5 changes Hot device 1.
Also include stop valve 21, the one end of stop valve 21 connection water circulating pump 2, other end connection two-way, connection is high all the way adds Drawn water heat exchanger 3, and another way is connected to water- to-water heat exchanger 4.Add to draw water in the height and set first between heat exchanger 3 and stop valve 21 Regulating valve 31.Described to setting the second regulating valve 41 between water- to-water heat exchanger 4 and stop valve 21.Add in flue gas heat-exchange unit 5 with high Draw water and the 3rd regulating valve 51 is set between heat exchanger 3.Also include a bypass, the 4th regulating valve 6, the 4th regulation are set in bypass Valve 6 is connected in parallel on the 3rd regulating valve 51 and the both ends of flue gas heat-exchange unit 5.
The gasification gas heat exchanger 1, height add the heat exchanger 3 that draws water, are that surface-type changes to water- to-water heat exchanger 4, flue gas heat-exchange unit 5 Hot device.The gasification gas heat exchanger 1 is arranged in gasification feed channel.The flue gas heat-exchange unit 5 is arranged in boiler exhaust gas pipe.
Utility model works process is as follows:
Such as Fig. 1, hollow arrow show gasification stream to the gasification gas heat exchanger 1 is arranged in gasification feed channel, warp Heat medium water after heat exchange enters two-way through water circulating pump 2 and stop valve 21, connects all the way into the high plus heat exchanger 3 that draws water, another way Connect to water- to-water heat exchanger 4.Coal-burning boiler operationally, in high load capacity, can be closed according to operating load by the second regulating valve 41 Close feed-water heater 4, open the first regulating valve 31 and Gao Jia draws water heater 3, heating height adds to water, and exclusion steam turbine is high plus takes out Vapour;In underload, the high plus heater 3 that draws water is closed by the first regulating valve 31, opens the second regulating valve 41 and feedwater heating Device 4, heating feedwater, feed temperature is improved, and then improve denitration input gas temperature, realize wide load denitration.The gas that gasifies heats Heat medium water after high plus draw water heater 3 or feed-water heater 4 is being flowed through heating boiler discharge fume, lift exhaust gas temperature, prevent cigarette Chimney corrodes.
The deep-step that the utility model realizes gasification gas sensible heat utilizes, and adds steam turbine amount of work during high load capacity, low Denitration efficiency is ensure that during load.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims (9)

1. a kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system, it is characterised in that including gasification gas heat exchanger, follows Ring water pump, height add the heat exchanger that draws water, to water- to-water heat exchanger, flue gas heat-exchange unit;The gasification gas heat exchanger connection water circulating pump, it is described Water circulating pump connects two-way, and connection is high all the way plus the heat exchanger that draws water, another way are connected to water- to-water heat exchanger, described high plus heat exchange of drawing water Device, the other end to water- to-water heat exchanger are all connected with flue gas heat-exchange unit, the other end connection gasification gas heat exchanger of flue gas heat-exchange unit.
2. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 1 utilizes system, it is characterised in that Also include stop valve, stop valve one end connection water circulating pump, other end connection two-way, connection is high all the way adds the heat exchanger that draws water, separately Connect all the way to water- to-water heat exchanger.
3. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 2 utilizes system, it is characterised in that Add to draw water in the height and the first regulating valve is set between heat exchanger and stop valve.
4. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 2 utilizes system, it is characterised in that Described to setting the second regulating valve between water- to-water heat exchanger and stop valve.
5. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 1 utilizes system, it is characterised in that The 3rd regulating valve is set between flue gas heat-exchange unit and the high plus heat exchanger that draws water.
6. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 5 utilizes system, it is characterised in that Also include a bypass, the 4th regulating valve is set in bypass, the 4th regulating valve is connected in parallel on the 3rd regulating valve and flue gas heat-exchange unit two End.
7. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 1 utilizes system, it is characterised in that The gasification gas heat exchanger, height add the heat exchanger that draws water, are surface-type heat exchanger to water- to-water heat exchanger, flue gas heat-exchange unit.
8. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 1 utilizes system, it is characterised in that The gasification gas heat exchanger is arranged in gasification feed channel.
9. a kind of gasification of biomass coupling coal fired power generation gasification gas according to claim 1 utilizes system, it is characterised in that The flue gas heat-exchange unit is arranged in boiler exhaust gas pipe.
CN201720736013.4U 2017-06-22 2017-06-22 A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system Expired - Fee Related CN206973523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720736013.4U CN206973523U (en) 2017-06-22 2017-06-22 A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720736013.4U CN206973523U (en) 2017-06-22 2017-06-22 A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system

Publications (1)

Publication Number Publication Date
CN206973523U true CN206973523U (en) 2018-02-06

Family

ID=61409138

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720736013.4U Expired - Fee Related CN206973523U (en) 2017-06-22 2017-06-22 A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system

Country Status (1)

Country Link
CN (1) CN206973523U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139158A (en) * 2018-08-06 2019-01-04 山东电力工程咨询院有限公司 Utilize the system and method for biogas sensible heat and smoke evaporative emission reduction desulfurization wastewater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139158A (en) * 2018-08-06 2019-01-04 山东电力工程咨询院有限公司 Utilize the system and method for biogas sensible heat and smoke evaporative emission reduction desulfurization wastewater

Similar Documents

Publication Publication Date Title
CN103968406A (en) Water gas smoke-smoke heat exchanging system and method capable of preventing low-temperature corrosion
CN106090880A (en) A kind of machine stove set heat circulation afterheat recycling system
CN202791972U (en) Boiler tail flue gas waste heat utilization system
CN102384680A (en) Device for recovering and utilizing waste heat generated by smoke discharging in split type heating medium circulating way
CN202484963U (en) Quality improvement and gradual utilization system of waste heat of boiler smoke of heat-engine plant
CN204268453U (en) A kind of flue gas waste heat recovery system of absorption heat pump cycle
CN104359103A (en) Flue gas residual heat recovery system with absorption type heat pump circulation
CN206973523U (en) A kind of gasification of biomass coupling coal fired power generation gasification gas utilizes system
CN102494329B (en) Device for utilizing flue gas waste heat of boiler comprehensively
CN102506412A (en) System and method for recycling heat energy generated by deslagging of fluidized-bed combustion boiler
CN100520268C (en) Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant
CN105180146A (en) Multi-stage smoke waste heat recovery and comprehensive utilization system for combined heat and power plant
CN205383589U (en) Novel energy -efficient application system of afterbody flue gas heat energy set
CN102087024A (en) Energy saving device for circulating fluidized bed boiler
CN202630747U (en) Waste heat recovery system capable of improving efficiency of electric dust collector
CN205352097U (en) Heating furnace
CN204756887U (en) High -efficient hot media water system of circulating fluidized bed boiler
CN201884079U (en) Heat regenerative system of steam turbine generator unit capable of utilizing waste heat of heat conducting oil furnace in calcination plant
CN105402761A (en) Deep coupling utilization system for turbine steam exhaust waste heat and boiler flue gas waste heat
CN203731368U (en) Device for deep recovery of smoke discharge waste heat of waste heat boiler
CN110145754A (en) It can prevent the boiler flue gas treatment system and method for back-end surfaces low-temperature corrosion
CN102645112A (en) Waste heat recovery system for improving efficiency of electric dust collector
CN205979724U (en) Machine furnace set heat energy circulation waste heat recycling system
CN203036658U (en) Boiler flue gas waste heat multipurpose utilization system
CN205535923U (en) Cleaning type coal fired boiler discharges fume waste heat and puies forward matter and utilize system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180206

Termination date: 20180622